{
  "id": "teaching-audio-engineering-recording-2",
  "title": "Teaching Audio Engineering & Recording II",
  "course_url": "/learn/courses/teaching-audio-engineering-recording-2.html",
  "audience": "teacher",
  "lesson_count": 16,
  "mapped_checkpoint_count": 16,
  "rows": [
    {
      "id": "PD-AER2-M01",
      "lesson_number": 1,
      "title": "Coach listening with calibrated claims",
      "assignment": "Comparison audio, playback notes and a stated reason for each level choice.",
      "practice_steps": [
        "Use modest playback, stable output and short trials. Randomize the order of the level pair without normalizing it; normalization would erase the intentional difference. No calibrated hearing-threshold claims.",
        "Find the frequency region: Label the three reference regions. Listen to the phrase and name one region of interest. Test a small broad EQ change on a copy where supported. Record whether the observation survives a context comparison. Evidence: Reference labels and one bounded diagnostic test.",
        "Can you hear 3 dB?: Set comfortable playback with the louder file first. Run six short order-varied comparisons with a teacher or partner. Record louder choice and confidence before reveal. Check results and describe any uncertainty or order effect. Evidence: Six-trial record with choices, revealed order and reflection.",
        "Now compare 1 dB: Run six short comparisons with order varied. Write choice and confidence before each reveal. Compare consistency with the 3 dB trials. Name one condition that could affect the results. Evidence: Trial log and cautious comparison of results.",
        "Set a reference and log uncertainty: Choose and document a comfortable playback setup. Use the reference before judging a short mix. Repeat the reference after the comparison to check setup consistency. Record uncertainty and any changed conditions. Evidence: Reference/setup log and limits statement.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Hear 150, 1000 and 4000 Hz references, then the supplied phrase.",
        "Model these operations aloud, keeping the original recoverable: 1. Label the three reference regions. 2. Listen to the phrase and name one region of interest. 3. Test a small broad EQ change on a copy where supported. 4. Record whether the observation survives a context comparison.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Does a frequency reference establish an individual hearing threshold? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "An educator uses six 1 dB trials as a hearing-acuity diagnosis and normalizes the level pairs first."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M02",
      "lesson_number": 2,
      "title": "Teach stereo capture honestly",
      "assignment": "Position notes, stereo/mono comparisons and a claim limited to what you tested.",
      "practice_steps": [
        "For capture, provide two matched or documented microphones, approved mounting and a repeatable source. Teach physical safety and connection checks. Supply synthetic phase files only as an analysis alternative; they do not demonstrate stereo mic operation.",
        "Choose the stereo geometry: State source, room and intended stereo impression. Draw a coincident or spaced arrangement with actual directions/spacing. Explain likely level/time relationships. Have the teacher verify the practical setup or label the work as a plan. Evidence: Geometry plan with purpose and capability status.",
        "Capture a repeatable source: Record or inspect a complete two-channel test. Check that both channels carry intended content and note their levels. Change one teacher-approved geometry variable for a second take if available. Save conditions and compare without silently normalizing the raw evidence. Evidence: Two-channel recording/analysis and controlled-conditions log.",
        "Test timing and polarity separately: Save the original pair and route. Try a polarity reversal on one channel and compare. Restore polarity, then test one small time adjustment separately. Record which change helped, its cost and what cause remains unproven. Evidence: Separate timing/polarity tests and bounded diagnosis.",
        "Evaluate mono compatibility: Document the summing method. Compare a located foreground phrase in stereo and mono. Test one revision only if a meaningful problem exists. Retain the original and explain the final compromise. Evidence: Stereo/mono evaluation with method and decision.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Hear a teacher-approved stereo example or phase-stereo.wav and identify width versus source clarity.",
        "Model these operations aloud, keeping the original recoverable: 1. State source, room and intended stereo impression. 2. Draw a coincident or spaced arrangement with actual directions/spacing. 3. Explain likely level/time relationships. 4. Have the teacher verify the practical setup or label the work as a plan.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Why is naming a stereo technique insufficient documentation? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "A synthetic delayed stereo file is used to certify that students can place and operate a stereo microphone pair."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M03",
      "lesson_number": 3,
      "title": "Teach noise and gain relationships",
      "assignment": "Raw takes, gain and position notes, and the first test you would ask learners to repeat.",
      "practice_steps": [
        "Use a source/quiet capture made with the same settings. For physical work, prevent automatic gain where possible and record device limitations. Do not infer calibrated room metrics from listening alone.",
        "Map room contributions: Map source, microphone and major nearby surfaces. Identify a pause where room contribution is audible. Test one source or microphone move where available. Record the observation and distinguish real capture from synthetic analysis. Evidence: Room map and a controlled observation.",
        "Compare signal and noise: Choose wanted and quiet time windows. Record the same type of level estimate for each if a suitable meter exists. Explain the limitations of the estimate, including residual room/source sound. Predict why lowering the playback fader alone does not remove recorded noise selectively. Evidence: Window/method record and a ratio explanation.",
        "Trace gain through stages: Draw input gain, converter, track processing, fader and output where present. Label which meter observes each available point. Identify an upstream overload scenario followed by a quiet final meter. Describe the earliest useful test and a prevention action. Evidence: Gain-stage diagram and an overload diagnosis.",
        "Run a controlled capture test: State one hypothesis and variable. Record a baseline and changed condition, or prepare an explicitly unperformed protocol if capture is unavailable. Retain raw files and label any matched listening copies. Report the result, tradeoff and remaining uncertainty. Evidence: Controlled capture record with raw evidence and conclusion.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Hear a short live phrase and its room tail, or compare dry/reflection models as analysis.",
        "Model these operations aloud, keeping the original recoverable: 1. Map source, microphone and major nearby surfaces. 2. Identify a pause where room contribution is audible. 3. Test one source or microphone move where available. 4. Record the observation and distinguish real capture from synthetic analysis.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Can listening to a synthetic reverb establish the acoustics of your classroom? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "The teacher lowers a noisy file’s fader and describes the result as an improved recorded signal-to-noise ratio."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M04",
      "lesson_number": 4,
      "title": "Assess multitrack session integrity",
      "assignment": "Input plan, original tracks, reopened session and separate capture and musical scores.",
      "practice_steps": [
        "Arrange a small ensemble or sequentially recorded parts with available inputs. Parallel live capture is a distinct skill from assembling supplied stems. Provide a session brief and clear performer permissions.",
        "Plan inputs and cues: List sources, inputs, track names and performer roles. Choose simultaneous or sequential capture based on actual resources. Draw one monitoring route and identify possible duplicate monitoring. Prepare take names and a recovery plan. Evidence: Input/cue plan with actual session mode.",
        "Record a small ensemble: Verify each input and its recorded playback. Capture two short takes or overdub passes. Keep original tracks aligned and independently saved. Log source, take and any changed setting. Evidence: Multitrack sources and take log with capture mode.",
        "Comp with originals retained: Select a short preferred phrase from each take. Create a new comp version without replacing originals. Check linked timing, room continuity and complete attacks/decays. Retain or reject the join with a located reason. Evidence: Comp, originals and edit-boundary decision.",
        "Hand off the session: Export aligned source/stem files and a reference. Record start, tempo if relevant, routing and processing dependencies. Open the copied project or reconstruct from the delivered files. Document differences and correct a missing source if found. Evidence: Multitrack package and actual recovery report.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Listen to a short cue test and identify whether each performer can follow the needed reference.",
        "Model these operations aloud, keeping the original recoverable: 1. List sources, inputs, track names and performer roles. 2. Choose simultaneous or sequential capture based on actual resources. 3. Draw one monitoring route and identify possible duplicate monitoring. 4. Prepare take names and a recovery plan.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Why should session mode be explicit in the evidence? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "The class imports stems and the educator signs off simultaneous ensemble capture; one microphone track is moved alone during a comp."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M05",
      "lesson_number": 5,
      "title": "Teach diagnosis before the processor",
      "assignment": "Baseline excerpt, test settings, results and a processor decision supported by them.",
      "practice_steps": [
        "Import the three stems at a common start; verify duration remains 12 seconds. Keep baseline copies. Mix A/B are RMS matched in the supplied files; subjective loudness can still differ.",
        "Find what disappears: Write the intended foreground and its role. Choose a three-second window in mix-a and record the time. Describe an observation without naming a processor. Propose two possible causes and a different test for each. Evidence: Time-located observation, two hypotheses and two tests.",
        "Try the smallest change: Import melody, pad and pulse at a common start point. Leave stretching off or verify unchanged duration. Save a baseline. Lower only the pad level, keeping the other parts fixed. Compare the same passage in the full mix; adjust the comparison listening level only as needed and document it. Keep or reject the change based on melody clarity and musical support. Evidence: Baseline/test exports, changed setting and one benefit/one cost.",
        "Make a fair A/B: Version A: leave a short gap in the pad at a chosen melody entrance. Version B: if EQ is available, make one small tonal change to the pad; otherwise test a different pad level and label the alternative accurately. Compare each separately against baseline at similar playback loudness. Select one approach and explain what the alternative did less well. Evidence: Two labeled tests and a decision table: purpose, changed variable, result, limitation.",
        "Defend and transfer: Write a new brief and time-located observation. Test one change and preserve the original. Ask a peer for one specific observation without telling them which version you prefer. Submit a 60–90-second spoken explanation or 150–200-word written record, with the A/B audio and your final decision. Evidence: New-window A/B pair, decision record and response to peer feedback.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Play melody alone, then mix-a. Tap or describe the note contour. Identify a point where the sustained support competes with the melody.",
        "Model these operations aloud, keeping the original recoverable: 1. Write the intended foreground and its role. 2. Choose a three-second window in mix-a and record the time. 3. Describe an observation without naming a processor. 4. Propose two possible causes and a different test for each.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Does a difficult-to-hear melody prove the recording needs an EQ boost? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "The teacher tells students the answer is EQ before they hear the obscured foreground and accepts only that solution."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M06",
      "lesson_number": 6,
      "title": "Teach source-specific compression",
      "assignment": "Settings, matched examples and a source-specific reason for the chosen behavior.",
      "practice_steps": [
        "Prepare transient and sustained sources, a compressor with manual timing where available, and output trim. Disable automatic makeup gain for experiments. Supplied renders support analysis when controls are absent.",
        "Compare transient and sustained sources: Mark a transient and a sustained interval. Predict intermittent versus continuous reduction under a shared threshold. Test or inspect the supplied dynamics examples. State a different musical goal for each source. Evidence: Envelope observations and source-specific goals.",
        "Set detector and ratio: Name the symptom and actual detector options. Set a moderate ratio and threshold for occasional action. Test one detector change where supported; otherwise explain the proposed test. Record what triggered reduction and its cost to the phrase. Evidence: Settings and a detector-behavior observation or bounded proposal.",
        "Test attack and release: Preserve baseline settings. Compare two attack values with release fixed. Restore attack and compare two releases. Choose a result and locate one retained transient or recovery behavior. Evidence: Separate timing tests and chosen settings.",
        "Explain the source-dependent choice: Document separate goals and baselines. Create one controlled processing version for each. Reduce loudness bias when judging. Explain the final choices, including any rejected processing. Evidence: Two source decisions with paired evidence.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Hear transient.wav and sustained.wav; compare attack, body and spaces.",
        "Model these operations aloud, keeping the original recoverable: 1. Mark a transient and a sustained interval. 2. Predict intermittent versus continuous reduction under a shared threshold. 3. Test or inspect the supplied dynamics examples. 4. State a different musical goal for each source.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Would equal peaks guarantee equal gain reduction over time? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "The educator applies one preset to every source and awards high scores whenever the processed render is louder."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M07",
      "lesson_number": 7,
      "title": "Assess gates without rewarding damaged tails",
      "assignment": "Before/after audio, settings and a note on any lost wanted sound.",
      "practice_steps": [
        "Prepare gate-dry, gate-tight and gate-gentle examples. If a gate/expander is available, expose threshold, range and timing. Do not equate gating with removal of noise during the wanted sound.",
        "Hear spill in context: Listen in context if related tracks exist. Mark wanted events and unwanted intervals. Name material that must not be removed. Decide whether treatment is justified or whether placement/arrangement would be a better earlier fix. Evidence: Annotated timeline and treatment decision.",
        "Compare gating and expansion: Listen to the same event and its complete ending in all versions. Identify the quieter gaps and any damaged decay. Choose a treatment based on the intended source role. State that the supplied envelopes model behavior rather than emulate a named device. Evidence: Three-way comparison and a continuity judgment.",
        "Control the detector: Mark correct and false triggering moments. Adjust one available detector/timing control on a copy. Replay the same window and record whether false behavior decreases. Check that quieter wanted events still pass. Evidence: Trigger log, settings and a retest.",
        "Reject chatter and lost endings: Identify an unwanted opening/closure or document a clean result. Test one timing/range correction where available. Compare with the dry source in context. Export the chosen passage and verify its full endings. Evidence: Final treatment with rejected-test evidence.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Hear gate-dry.wav, focusing on gaps and event endings.",
        "Model these operations aloud, keeping the original recoverable: 1. Listen in context if related tracks exist. 2. Mark wanted events and unwanted intervals. 3. Name material that must not be removed. 4. Decide whether treatment is justified or whether placement/arrangement would be a better earlier fix.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Will gating automatically remove spill during a loud wanted hit? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "A teacher calls the quietest gaps best even though soft wanted events disappear and decays are chopped."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M08",
      "lesson_number": 8,
      "title": "Teach space without inventing acoustics",
      "assignment": "Three labeled listening comparisons, a description of the space impression, and route and tail checks if you operated an effect.",
      "practice_steps": [
        "Load dry, delay and dense-reflection models. Label them synthetic rather than measured rooms. Verify effect route, feedback limits and tail export behavior before class.",
        "Separate reflections from repeats: Locate the first repeat or reflected energy. Describe whether later events remain distinct. Identify an impact on phrase clarity. Separate observation from an imagined room description. Evidence: Three-version description with one clarity observation.",
        "Set time and feedback: Calculate a quarter-note interval for a chosen tempo. Compare a tempo-related time with a different time at fixed blend. Restore the chosen time and test a modest feedback change. Record buildup, clarity and the reason for the final choice. Evidence: Timing calculation and two isolated tests.",
        "Shape onset and decay: Mark the direct onset and next phrase entrance. Test one predelay change or predict it using the model. Restore the baseline and test decay separately. Choose a compromise that protects both attack and next entrance. Evidence: Onset/tail observations and control-specific reasoning.",
        "Test depth in context: State the intended near/far relationship. Adjust one send/blend or timing parameter. Compare the same passage and identify a benefit and cost. Export with a complete tail and test playback. Evidence: Depth decision with baseline, render and limits.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Compare dry, delay and dense-reflection versions.",
        "Model these operations aloud, keeping the original recoverable: 1. Locate the first repeat or reflected energy. 2. Describe whether later events remain distinct. 3. Identify an impact on phrase clarity. 4. Separate observation from an imagined room description.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Does a preset called Hall prove it reproduces a particular hall? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "A reverb preset name is presented as evidence of a measured real room, and delay feedback is taught as repeat spacing."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M09",
      "lesson_number": 9,
      "title": "Run an unfamiliar-session checkpoint",
      "assignment": "Observation record, repaired session, score and one targeted retest.",
      "practice_steps": [
        "Use the supplied case-session stems and teacher case key. The three engineered issues are a 100 ms late pulse, an overly dominant pad, and a truncated reference ending. Keep the teacher key separate until diagnosis. This is a synthetic session challenge, not a real artist recording.",
        "Inspect the route: Create a named working copy and retain downloaded originals. Import all stems at time zero without automatic alignment changes. List track/output routes and source durations. Write initial symptoms with time locations before editing. Evidence: Baseline session inventory and located observations.",
        "Rank evidence: Choose two located symptoms. Write competing causes for each. Design a single-variable test for the strongest hypothesis. Rank the next actions and explain the priority. Evidence: Hypothesis table with tests and priorities.",
        "Test repairs separately: Test one timing or level hypothesis. Record the predicted and actual result. Restore baseline before a second independent test. Combine only supported repairs and verify the full ending. Evidence: Separate repair versions and a test log.",
        "Submit the fault report: Write a concise report for each supported repair. Link filenames and time windows. Include one rejected test and why it was rejected. State a remaining uncertainty and the next discriminating test. Evidence: Fault report, baseline and corrected audio.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Play case-reference.wav, then the supplied case stems at their common start.",
        "Model these operations aloud, keeping the original recoverable: 1. Create a named working copy and retain downloaded originals. 2. Import all stems at time zero without automatic alignment changes. 3. List track/output routes and source durations. 4. Write initial symptoms with time locations before editing.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Why avoid normalizing every stem immediately? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "The teacher reveals all three faults before the practical and grades whether students copy the fixes."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M10",
      "lesson_number": 10,
      "title": "Teach routing and automation as testable paths",
      "assignment": "Route diagram, automation evidence and a clear distinction between group control and audio bus.",
      "practice_steps": [
        "Verify buses/sends in the selected DAW. Use a simple two-source session, no unintended feedback loops. Supply rendered analysis if routing is unavailable; practical bus operation remains separate.",
        "Draw insert and auxiliary paths: Draw a serial insert path. Draw a parallel send/return path. Mark summing points and final output. Predict what should remain audible when the return is muted. Evidence: Two diagrams and a mute prediction.",
        "Create a bus: Create a bus for two sources where supported. Route them deliberately and identify any remaining direct outputs. Test bus mute and source mute separately. Record whether the result is a subgroup, parallel route or analysis-only plan. Evidence: Routing snapshot and mute-test record.",
        "Blend a parallel return: Name the intended benefit. Keep the direct path unchanged and add a processed branch at low return level. Increase blend gradually and check overall headroom. Compare level-aware baseline/final and state a cost. Evidence: Parallel comparison and actual route/settings or analysis.",
        "Check timing and level: Reduce gains before summing. Test branch bypass/direct-only states. Check for a timing-related tonal change and inspect available compensation. Choose a verified route and document unresolved timing limitations. Evidence: Route validation and final decision.",
        "Name groups and destinations: Name foreground, support and pulse tracks. Identify actual groups, buses and outputs. Test one small linked level change and undo it. Draw which audio routes versus control links exist. Evidence: Session organization map and tested link behavior.",
        "Write one move: Name the target event and parameter. Write or record one move in the actual automation system. Check its start, end and following section. Save a named version and document where the editable data lives. Evidence: Automated project and located explanation.",
        "Resolve a routing conflict: Describe the exact unexpected behavior. List automation and duplicate-path explanations where plausible. Test one reversible state change or mute. Restore the desired mode and repeat the passage to verify the fix. Evidence: Conflict report with baseline, test and restored state.",
        "Verify the rendered move: Save and reopen the project. Confirm the move and its stored data. Export and play independently. Record any discrepancy, correction and retest. Evidence: Project recovery and render verification.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Hear direct-only and blended effect examples while following their two paths.",
        "Model these operations aloud, keeping the original recoverable: 1. Draw a serial insert path. 2. Draw a parallel send/return path. 3. Mark summing points and final output. 4. Predict what should remain audible when the return is muted.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Does muting a conventional effect return normally mute its separate dry source? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "A subgroup leaves unintended direct outputs active; extra level is praised. A fader move is not saved as automation."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M11",
      "lesson_number": 11,
      "title": "Use documented Nichols methods responsibly",
      "assignment": "Source note, listening comparison and a statement of what the exercise does and does not show.",
      "practice_steps": [
        "Use the three original teaching cases in case-studies.txt, with teacher method notes kept separate. Source methods are C01-004 microphone response, C01-019 sax edit boundaries and C01-023 gentle vocal compression. Synthetic audio illustrates problems; it is not Nichols archival session audio.",
        "Hear before the reveal: Choose Case A, B or C from the case sheet. Record two located observations before suggesting a fix. State the desired musical result. Save your initial answer before the reveal. Evidence: Case observation and a bounded goal.",
        "Classify competing causes: Name two plausible causes for the case symptom. Identify one observation supporting each and one that would weaken it. Choose the earliest useful test. Keep uncertain causes labeled as hypotheses. Evidence: Competing-cause table and test choice.",
        "Choose the first test: State the hypothesis and predicted result. Perform a reversible edit/bypass test, or design a capture test where equipment is unavailable. Record the actual observation separately from prediction. Choose the next step based on that evidence. Evidence: Test record with prediction, outcome and next action.",
        "Compare with the documented method: Read the relevant source-method reveal. Compare your first test with the documented principle. State one source-dependent adjustment or limitation. Write a short transfer plan for a different recording. Evidence: Source-attributed case reflection and transfer test.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Hear the dry/compressed phrase or supplied edit example before opening the teacher method reveal.",
        "Model these operations aloud, keeping the original recoverable: 1. Choose Case A, B or C from the case sheet. 2. Record two located observations before suggesting a fix. 3. State the desired musical result. 4. Save your initial answer before the reveal.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Why hide the proposed method until after the first judgment? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "The teacher claims a synthetic case recreates Roger’s exact work on a famous record and calls exercise settings universal."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M12",
      "lesson_number": 12,
      "title": "Teach reference and translation judgment",
      "assignment": "Reference notes, a second-system translation observation or marked untested limit, and one justified mix decision.",
      "practice_steps": [
        "Provide an original reference mix and two available playback systems. Keep comparisons short and comfortable. Reference matching is approximate unless a documented loudness method is available.",
        "Set a repeatable reference: State the mix question. Choose a reference passage with a comparable role. Document device, level setting and time window. Name one arrangement difference that limits the comparison. Evidence: Reference plan and limitation.",
        "Compare without a level trick: Preserve original files. Set a repeatable comparison window. Adjust playback level and state the matching method. Write one tone/balance observation that remains after level adjustment. Evidence: Comparison method and located observation.",
        "Listen on two systems: Name both systems and conditions. Record foreground, bass/body and ending observations. Identify a recurring issue versus a system-specific difference. Mark any unperformed test explicitly. Evidence: Two-system translation log.",
        "Prioritize the revision: Rank observations by impact and confidence. Choose one revision and predict its effect. Export and retest the same passages. Approve, reduce or reject the change with a reason. Evidence: Prioritized revision record and final choice.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Hear mix-a.wav and your mix; choose one bounded comparison question.",
        "Model these operations aloud, keeping the original recoverable: 1. State the mix question. 2. Choose a reference passage with a comparable role. 3. Document device, level setting and time window. 4. Name one arrangement difference that limits the comparison.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Why can an unrelated arrangement be a misleading tonal target? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "Every bass difference on an unfamiliar speaker triggers a new mix correction, and peak matching is called equal loudness."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M13",
      "lesson_number": 13,
      "title": "Teach delivery specifications without false compliance",
      "assignment": "Exported file, specification checklist and measured results or a clearly marked untested item.",
      "practice_steps": [
        "Use the classroom recipient brief in delivery-brief.txt. It is an exercise specification, not a universal streaming standard. Provide actual file-property inspection and avoid unsupported loudness compliance claims.",
        "Separate mixing from mastering: List one source-balance issue and one delivery-format issue. Choose which belongs back in the mix. Preserve the original stereo mix. Define a restrained finishing goal or justify no processing. Evidence: Mix-versus-delivery decision note.",
        "Read the recipient specification: Read delivery-brief.txt. Make a checklist of format, channels, range and stated level method. Identify which checks your tools can perform. Record an approved alternative or unresolved requirement clearly. Evidence: Recipient checklist and measurement-capability record.",
        "Compare a controlled finishing change: Name the finishing goal. Make one conservative tonal or dynamic test on a copy. Compare with level bias reduced and check all sections. Keep or reject the change and record any format-conversion choices. Evidence: Original/revision and finishing decision.",
        "Verify output and source archive: Inspect actual properties against the brief. Measure only with the documented available method. Play independently and record results. Archive original mix, project and dependencies, then test recovery. Evidence: Final checklist and recoverable archive.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Hear the whole mix and locate a concern that would require individual-track access.",
        "Model these operations aloud, keeping the original recoverable: 1. List one source-balance issue and one delivery-format issue. 2. Choose which belongs back in the mix. 3. Preserve the original stereo mix. 4. Define a restrained finishing goal or justify no processing.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Can a stereo processor independently rebalance every source without tradeoffs? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "The educator calls a sample-peak reading a true-peak certificate and promises one export setting fits every streaming service."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M14",
      "lesson_number": 14,
      "title": "Teach reproducible fault closure",
      "assignment": "Fault record, before/after route test and final musical playback check.",
      "practice_steps": [
        "Prepare one fault in a duplicate session from fault-lab.txt: wrong input, duplicate route, missing media or automation override. Never alter production or another student’s only copy.",
        "Identify the last working stage: List expected and actual behavior. Record evidence at each available stage. Identify the last proven stage. Choose the next boundary to test. Evidence: Stage-by-stage fault map.",
        "Test a fault hypothesis: Write two plausible causes. Choose one reversible discriminating test. Predict results for each cause. Run the test in the prepared copy or document a clearly labeled card result. Evidence: Hypothesis/test record with predictions.",
        "Record the repair and rollback: Record the original setting or baseline file. Apply one supported correction. Retest and save a named fixed version. Reopen and document both the result and how to restore the prior copy. Evidence: Repair, verification and rollback record.",
        "Confirm the musical outcome: Verify intended source identities and timing. Check full playback and ending. Compare with the brief/reference. Write closure or a specific remaining issue with the next test. Evidence: Final fault report with musical verification.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Use the same short test event while tracing input, capture and output.",
        "Model these operations aloud, keeping the original recoverable: 1. List expected and actual behavior. 2. Record evidence at each available stage. 3. Identify the last proven stage. 4. Choose the next boundary to test.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Does a moving MIDI activity light prove audio reaches speakers? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "After many simultaneous adjustments, sound returns and the educator closes the fault without recording the cause or reopening."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-M15",
      "lesson_number": 15,
      "title": "Coach a capstone and classroom launch",
      "assignment": "Teach-back, opened handoff, criterion scores and a specific next step for any gap.",
      "practice_steps": [
        "Set a 60–90-second capstone with at least three source roles, one physical capture where resources permit, controlled revisions and a recoverable handoff. Separate supplied-stem analysis from live recording skills.",
        "Define the listener: Write the 60–90-second listener brief. Assign at least three source roles. Name actual equipment and capture/analysis mode. Define observable capture, mix and recovery criteria. Evidence: Capstone brief and evidence plan.",
        "Design the session: Create input and placement/cue maps. Prepare versioned source and project locations. Name one likely failure and a feasible fallback. Test the route and revise the plan from the observed result. Evidence: Session plan with contingency and actual test.",
        "Capture and keep options: Capture or assemble the planned source roles. Retain two options for one meaningful decision. Document changed variables and confounds. Select the foundation with a located reason. Evidence: Source set, condition log and decision pair.",
        "Review the production evidence: Compare captured material with the brief. Classify recapture/edit/mix issues. Resolve the highest-priority capture problem where feasible. Reopen a saved copy and confirm the chosen foundation. Evidence: Production audit and verified foundation.",
        "Locate the three decisions: Choose three distinct engineering decisions. Name purpose, variable and time window for each. Locate the baseline and revision files. Identify one claim that still needs a cleaner test. Evidence: Three-decision evidence plan.",
        "Run controlled comparisons: Prepare three baseline/revision pairs. State whether level is the variable or a comparison bias to reduce. Collect one specific feedback point. Test a related revision and document its result. Evidence: Comparison set, feedback and revision evidence.",
        "Test translation: Log device and listening conditions. Collect observations at matching locations. Prioritize one recurring problem or justify no revision. Test the corrected export and record the compromise. Evidence: Translation report and final-priority decision.",
        "Approve a revision: Evaluate each original success criterion. Record accepted limitations and unresolved failures separately. Choose and name the approved version. Save its settings and link the decision evidence. Evidence: Approval record with criteria and final version identity.",
        "Build the handoff: Collect final audio, project and permitted source files. Write roles, alignment, format and dependency notes. Include the three-decision evidence set. Copy the package and confirm the final filename matches the approval record. Evidence: Final handoff package and manifest.",
        "Reopen independently: Open the recipient copy independently of the working session. Check source identities and alignment. Play the reference separately and compare key locations. Repair missing dependencies where possible and record actual retest results. Evidence: Independent recovery report with reviewer/method and limits.",
        "Present the evidence: Prepare a three-minute presentation or equivalent written portfolio. Show three decisions and one rejected test. Include the feedback-to-revision example. Link recovery evidence and accessible descriptions. Evidence: Evidence presentation and portfolio links.",
        "Plan the next skill: List three independently demonstrated competencies. Identify one analysis-only or untested practical skill. Design a bounded next exercise and necessary resources. Define the artifact and criterion that would establish progress. Evidence: Competency reflection and next-exercise brief.",
        "Tell students what they are testing. Ask what result would count as evidence, and write down one answer before you begin.",
        "Display the baseline and identify its source, route and playback conditions. Hear a short source rehearsal or the candidate stems and identify the intended foreground.",
        "Model these operations aloud, keeping the original recoverable: 1. Write the 60–90-second listener brief. 2. Assign at least three source roles. 3. Name actual equipment and capture/analysis mode. 4. Define observable capture, mix and recovery criteria.",
        "Pause before the final result. Ask: “Which variable changed, what stayed fixed, and what has not been tested?” Then show the result and name its limits.",
        "Ask the student diagnostic: Can a supplied-stem mix certify microphone operation? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response. If a student misses the point, use a simpler example and ask again.",
        "Perform the linked unit’s practical on your actual classroom setup. Retain a baseline, the changed version and one independent replay/reopen check. If a capability is unavailable, label analysis evidence and record the practical skill still to be demonstrated.",
        "Prepare and deliver a three-minute teach-back of the demonstration to a colleague or reviewer, or make an accessible recording for review. Include one prediction, one controlled operation and one check for understanding. A transcript alone can document explanation but does not prove operation.",
        "Read the fictional educator submission below. Score it against the four PD criteria before seeing the facilitator key. Cite the sentence or missing artifact that justifies each score and suggest one practical step the teacher can try again.",
        "Adapt the lesson for your class: state period length, available devices, student grouping, an access alternative and how each learner will produce individual evidence. Do not claim an analysis alternative proves a physical operation.",
        "Save the workbook with the files you used, the time you spent, what you could not test, and what you will do next. Obtain reviewer feedback and retain a correction if any essential criterion is unmet.",
        "A technically impressive mix receives a completion claim although sources are missing and no independent recovery test occurred."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    },
    {
      "id": "PD-AER2-FINAL",
      "lesson_number": 16,
      "title": "Final portfolio and practical review",
      "assignment": "Portfolio evidence references, final handoff/recovery result, practical-skill record and next learning step.",
      "practice_steps": [
        "Locate evidence from the course tasks or modules for each final criterion. Include the original, a justified revision, and the verification result.",
        "Preserve the listening copy, editable recovery materials and applicable source permissions. Use your teacher-selected DAW.",
        "Name skills operated independently, skills completed with assistance and skills only analyzed. Arrange required practical opportunities before asking for final acceptance.",
        "For teacher development, include the classroom launch plan, teach-back, calibration example and actual active-time record. Module minutes and this final review time must not be double counted."
      ],
      "evidence_requirement": "Include the teaching plan, a teach-back or classroom trial, one scored student example, specific feedback, and a revised activity for a named learner need.",
      "standards": [
        "teach",
        "adapt",
        "assess",
        "implement"
      ],
      "assessment_criteria": [
        "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
        "Name a specific access or learning need and provide a usable alternative that preserves the intended skill.",
        "Score the work against stated criteria, identify the misconception and provide feedback and a suitable next activity.",
        "Retain teach-back feedback, revise the lesson, and use a subsequent teaching attempt to check the change."
      ],
      "assessed_focus": "State the learning objective, teach a workable activity and show how the resulting student work demonstrates the objective.",
      "alignment_scope": "The named work assesses this part of the standard; consult the official source for its complete scope."
    }
  ],
  "teacher_assessment": {
    "instructions": "Assess the work named in each row. Record the file or portfolio entry, the criterion, the result and the next action. Use a practical observation for equipment operation. Give feedback on the learner’s decisions as well as the finished result.",
    "levels": {
      "3": "Criterion met, with independent verification or a successful application in another situation.",
      "2": "Criterion met: the required work is complete, accurate and supported by evidence.",
      "1": "Some relevant work is present, but the intended result has not been demonstrated.",
      "0": "The required evidence has not been submitted or demonstrated."
    },
    "self_guided": "Read the evidence requirement before starting. Save the work, check each criterion and revise any missing or unsuccessful part. Use a peer or instructor for tasks that require feedback or a witnessed practical demonstration."
  },
  "readiness": {
    "pathway": "educator",
    "fit": "For educators, not a student course.",
    "prioritySkills": "Demonstrating and assessing critical listening; advanced capture; dynamics and space; troubleshooting and delivery.",
    "priorSkills": "Read or complete the companion student course; bring a sample assignment to assess.",
    "equipment": "DAW, headphones, supplied comparison files, interface and microphones for capture labs.",
    "expectedTime": "15 designed hours",
    "teacherGuidance": "No instructor is required; this edition is for educators preparing to demonstrate, assess, and adapt the student course."
  }
}